Error: Product is not a constructor - Node.js - - node.js

Question

Hello I'm making an Amazon clone, and I have this error
This is my code:
models/product.js
const mongoose = require("mongoose");
const ratingSchema = require("./rating");
const productSchema = mongoose.Schema({
name: {
type: String,
required: true,
trim: true,
},
description: {
type: String,
required: true,
trim: true,
},
images: [
{
type: String,
required: true,
},
],
quantity: {
type: Number,
required: true,
},
price: {
type: Number,
required: true,
},
category: {
type: String,
required: true,
},
ratings: [ratingSchema],
});
const Product = mongoose.model("Product", productSchema);
module.exports = { Product, productSchema };
routes/product.js
const ratingSchema = {
userId: req.user,
rating,
};
product.ratings.push(ratingSchema);
product = await product.save();
res.json(product);
} catch (e) {
res.status(500).json({ error: e.message });
}
});
productRouter.get("/api/deal-of-day", auth, async (req, res) => {
try {
let products = await Product.find({});
products = products.sort((a, b) => {
let aSum = 0;
let bSum = 0;
for (let i = 0; i < a.ratings.length; i++) {
aSum += a.ratings[i].rating;
}
for (let i = 0; i < b.ratings.length; i++) {
bSum += b.ratings[i].rating;
}
return aSum < bSum ? 1 : -1;
});
res.json(products[0]);
} catch (e) {
res.status(500).json({ error: e.message });
}
});
module.exports = productRouter;
I read a lot about this problem and to solve this error it is just adding an S on “exports” but I have it and got this error, so I don't know what I am missing.
For database language I'm using MongoDB, and I edit my user to admin profile and when I did that throw me this error, this is what I mean:
_id
63597582b96d28bbf4fba
name
"test"
email
"test#gmail.com"
password
"$0ZmF.eCD5zmB.etNxmGn22tTQqrCsrXkWMhO"
address
""
type
"admin "
__v
0